Door stay construction



Feb. 16, 1937. H. E. HUBBS DOOR STAY CONSTRUCTION Filed Feb. 26, 1936 Patented Feb. 16,

UNITED STATES PATENT OFFICE poration of Ohio Application February 26, 1936, Serial No. 6538,51

2 Claims.

The invention relates generally to door stays for holding doors in an open position, and more particularly to a door stay having-mechanism for yieldably limiting the opening movement of a door.

The term door as used herein, is intended to include any hinged closure member, such as a door or Window, because the improved door stay can be used equally Well on any of such members.

Certain prior constructions have been provided for holding a door at predetermined open positions, but in these constructions either no provision is made for yieldably limiting the door opening movement, or where such provision has been attempted, the construction has been rendered unduly complicated, expensive or impractical.

It is therefore an object of the present invention to provide an impro-ved door stay construction for securing a door at any desired open position.

Another object is to provide an improved door stay construction having means for yieldably limiting the opening movement of the door.

A further object is to provide a novel door stay construction having both means for holding the door at any desired open position and means for yieldably limiting the door opening movement.

Another object is tol provide an improved door stay construction which folds into a minimum amount of space in door closed position.

A still further object is to provide a novel door stay incorporating all of the foregoing advantageous features, which is extremely simple in construction and eflicient in operation, which is inexpensive to manufacture, and which is easily installed upon any standard type of hinged closure member.

These and other objects are attained by the improvements, parts, combinations and arrangements comprising the present invention, which may be stated in general terms as including a pair of hinged arms pivoted one to a door and the other to the door frame, a holding link pivoted at one end to an intermediate portion of one arm and having a sliding connection With the other arm, and spring means on said other arm for abutting said sliding connection to yieldingly limit the opening movement of the door.

Referring to the drawing forming part hereof,

Figure 1 is a plan view of the improved door stay mounted on a door in closed position;

Fig. 2 is an elevation thereof, parts being shown in section and the door and door frame being shown fragmentarily;

Fig.3 Ais a transverse sectional view as on line 3'-,3', Fisr2;

Fjl, is4 aY planvieyv ,onual' reduced scale showing' the" improvedjdoorstay on a door in partially open position; and 5' Fig. 5 is a similar view showingvr the door in fully open'position, l l.

Similar numerals refer to similar parts throughout the drawing".l

In the' drawingya door frame is shown frag- 1'0" mentarily at IIJ, and a door II is hinged thereto as at I I in a usual manner. An angular bracket I2 is secured to the door, as by screwsy I3 preferably at the upper portion of the door, and a bracket |4, which may be U-shaped as shown, is l5 secured to the underside of the upper part of the door frame as by screws I5.

A preferably lat bar or arm I6 is pivotally connected at one end to the bracket I4 as by the pivot Il, and another arm I8 is pivotally connected at 20 one end to the bracket I2 as by the pivot I9.

The arms I6 and I8 are pivotally connected at their other ends as by a pivot pin 20, there being a washer 2| located around the pivot 20 between the arms for spacing them apart. 25

A slide 22 is movably mounted on the upper side of the arm I6 and may be a fiat bar having at one end an upturned ange 23 for a purpose to be hereinafter described.

A U-shaped clamping member 24 fits around 30 the other end of the slide and the arm I6 thereunder, and a. bolt 25 extends through the arm and slide and is provided with a Wing nut 26 for frictionally clamping or securing the slide to the arm I6 for preventing movement of the slide on 35 the arm.

Intermediate its ends, the slide 22 is provided with a pivoty pin 21 which projects downwardly through a longitudinal slot 28 provided in the arm I6.

A holding member or flat link 29 is pivotally connected at one end to an intermediate portion of the arm |8 as by the pivot 38 and is connected at its other end to the pivot pin 21. Preferably, anti-friction washers 3| are provided at both 45 sides of the washer 2| and between the arms I6 and I8 and the link 29, as well as between the arm I8 and the bracket I2. The anti-friction washers 3| around the pivots 30 and 21 also serve to space the link 29 slightly from the arms I8 and 50 I6 respectively.

The arm I6 is preferably provided adjacent the pivot 20 with an upturned ange 32, and a spring centering pin 33 is secured therein. A coil spring 34 is located around the centering pin 33 and se- 55 cured thereto at its inner end by clamping the inner convolution into an annular groove 36 in the pin.

In the operation of the improved door stay, assuming that the wing nut 26 is loosened to permit longitudinal movement of the slide 22 on the arm I6, as the door II is opened to a position such as shown in Fig. 4, the slide 22 moves outwardly along the arm I6, the pivot 21 and bolt 25 moving in the slot 28. By tightening the Wing nut 26 to clamp the slide to the arm I6 the door II may be held or secured in any desired partially open position.

If the door II is permitted to swing to fully open position as indicated in Fig. 5, the ange 23 of the slide 22 abuts and compresses the coil spring 34, with the result that the opening movement of the door II is yieldingly limited or cushioned, thus eliminating shocks and strains on the door or the door frame, as well as on the door stay parts.

If it is desired to secure or hold the door in fully open position, it is only necessary to tighten the wing nut 26 when the door is in that position.

As shown in Figs. l and 2 when the door is in closed position the improved stay folds into a minimum amount of space, because the link 29 folds into the space between arms I6 and I8 provided for by washer 2I, and the whole door stay lies substantially against the inside of the door and substantially against the underside of the door frame.

The improved door stay is simply and cheaply constructed mainly of fiat straps or strips, and is quickly and easily installed upon any standard door or the like by merely attaching the brackets I2 and I4 by means of screws.

I claim:

l. Door stay construction including a pair of arms pivoted together at one end and pivotally connected one to a door and one to a door frame, one of said arms having a longitudinal slot, a slide movably mounted on the upper side of said arm, a link pivotally connected at one end to the upper side of an intermediate portion of the other arm and extending under said slot, and a pin extending through said slot and pivotally connecting said link to said slide.

2. Door stay construction including a pair of arms pivoted together at one end and pivotally connected one to a door and one to a door frame, one of said arms having a longitudinal slot, a slide movably mounted on the upper side of said arm, means for frictionally securing said slide to said arm, a link pivotally connected at one end to the upper side of an intermediate portion of the other arm and extending under said slot, and a pin extending through said slot and pivotally connecting said link to said slide.

HENRY E. HUBBS. 

